Method preloadBlock

src/actions/Preload.ts:351–384

* Preload all assets in a block

(blockId: string)

	 * Preload all assets in a block
	 */
	private async preloadBlock(blockId: string): Promise<void> {
		const block = Preload._blocks[blockId];
		if (!block) {
			console.warn(`Preload: Block "${blockId}" not found`);
			return;
		}

		const promises: Promise<void>[] = [];

		for (const [category, assets] of Object.entries(block)) {
			// Handle characters separately (nested structure)
			if (category === 'characters' && typeof assets === 'object' && !Array.isArray(assets)) {
				for (const [charId, sprites] of Object.entries(assets as Record<string, string[]>)) {
					for (const spriteName of sprites) {
						promises.push(this.preloadCharacterSprite(charId, spriteName));
					}
				}
				continue;
			}

			if (!Array.isArray(assets)) continue;

			// Use registered loader for this category
			if (Preload.hasLoader(category)) {
				for (const assetName of assets) {
					promises.push(this.preloadAsset(category, assetName));
				}
			} else {
				console.warn(`Preload: No loader registered for category "${category}" in block "${blockId}"`);
			}
		}

		await Promise.all(promises);
	}

	override async apply(): Promise<void> {
		// Start the preload operation